As glaciers melt and permafrost thaws, Longyearbyen, on the remote Arctic islands of Svalbard, faces climate-induced problems from tap water to housebuilding to landslides

• Heavy metals make Norwegian village’s tap water toxic

On a rugged mountain plateau of snow-dusted rocks, in the remote archipelago of Svalbard, a glaciologist, Andy Hodson, points out the “ears” of ice, white against the rock, that gave Foxfonna glacier its name, after the arctic fox.

The small glacier, on a mountain 8 miles (15km) outside the Norwegian village of Longyearbyen, is a popular summer hike for tourists who come here seeking the Arctic experience.

Warning for other Arctic communities as residents told not to use water in Longyearbyen in Svalbard, one of the fastest-warming places in the world

Residents of a remote town in Norway that is in one of the fastest-warming places in the world have been told they must no longer drink tap water due to heavy metal contamination that scientists have linked to the thawing permafrost.

Longyearbyen, in the archipelago of Svalbard, gets its main drinking water supply from a 1.5 mile-long (2.5km) dammed lake called Isdammen, or “ice pond”. Higher temperatures as a result of the climate crisis have thawed permafrost, leading to newly exposed bedrock leaching metals into the pond.